You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

opteryx
0.0.0a11

This version was deleted from PyPI around 2025-09-05. Installing fails with:
$ pip3 install opteryx==0.0.0a11 ERROR: Could not find a version that satisfies the requirement opteryx==0.0.0a11
View other deleted versions of opteryx

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2025-09-04/ \ opteryx==0.0.0a11
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
opteryx-0.0.0a11-cp38-cp38-macosx_10_14_x86_64.whl (244.9KB)
opteryx-0.0.0a11-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (860.0KB)
opteryx-0.0.0a11-cp38-cp38-win_amd64.whl (244.3KB)
opteryx-0.0.0a11-cp39-cp39-macosx_10_15_x86_64.whl (249.4KB)
opteryx-0.0.0a11-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (856.9KB)
opteryx-0.0.0a11-cp39-cp39-win_amd64.whl (244.6KB)
opteryx-0.0.0a11.tar.gz (285.3KB)